Added send for ConfirmedEventNotification.

2009-09-12 18:00:42 +00:00
parent 6cfc2b805f
commit c4e56abcea
4 changed files with 110 additions and 2 deletions
@@ -0,0 +1,104 @@
+/**************************************************************************
+*
+* Copyright (C) 2005 Steve Karg <skarg@users.sourceforge.net>
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*
+*********************************************************************/
+#include <stddef.h>
+#include <stdint.h>
+#include <errno.h>
+#include "event.h"
+#include "datalink.h"
+#include "tsm.h"
+#include "dcc.h"
+#include "address.h"
+/* some demo stuff needed */
+#include "handlers.h"
+#include "txbuf.h"
+
+/* returns the invoke id, 0=unsuccessful */
+uint8_t Send_CEvent_Notify(
+    uint32_t device_id,
+    BACNET_EVENT_NOTIFICATION_DATA * data)
+{
+    int len = 0;
+    int pdu_len = 0;
+    int bytes_sent = 0;
+    BACNET_NPDU_DATA npdu_data;
+    BACNET_ADDRESS dest;
+    BACNET_ADDRESS my_address;
+    unsigned max_apdu = 0;
+    bool status = false;
+    uint8_t invoke_id = 0;
+
+    if (!dcc_communication_enabled())
+        return 0;
+
+    /* is the device bound? */
+    status = address_get_by_device(device_id, &max_apdu, &dest);
+    /* is there a tsm available? */
+    if (status)
+        invoke_id = tsm_next_free_invokeID();
+    if (invoke_id) {
+        /* encode the NPDU portion of the packet */
+        datalink_get_my_address(&my_address);
+        npdu_encode_npdu_data(&npdu_data, true, MESSAGE_PRIORITY_NORMAL);
+        pdu_len =
+            npdu_encode_pdu(
+                &Handler_Transmit_Buffer[0], 
+                &dest, &my_address,
+                &npdu_data);
+        /* encode the APDU portion of the packet */
+        len = cevent_notify_encode_apdu(
+            &Handler_Transmit_Buffer[pdu_len], invoke_id, data);
+        pdu_len += len;
+        /* will it fit in the sender?
+           note: if there is a bottleneck router in between
+           us and the destination, we won't know unless
+           we have a way to check for that and update the
+           max_apdu in the address binding table. */
+        if ((unsigned) pdu_len < max_apdu) {
+            tsm_set_confirmed_unsegmented_transaction(invoke_id, &dest,
+                &npdu_data, &Handler_Transmit_Buffer[0], 
+                (uint16_t) pdu_len);
+            bytes_sent =
+                datalink_send_pdu(&dest, &npdu_data,
+                &Handler_Transmit_Buffer[0], pdu_len);
+#if PRINT_ENABLED
+            if (bytes_sent <= 0) {
+                fprintf(stderr, 
+                    "Failed to Send ConfirmedEventNotification Request (%s)!\n",
+                    strerror(errno));
+            }
+#endif
+        } else {
+            tsm_free_invoke_id(invoke_id);
+            invoke_id = 0;
+#if PRINT_ENABLED
+            fprintf(stderr,
+                "Failed to Send ConfirmedEventNotification Request "
+                "(exceeds destination maximum APDU)!\n");
+#endif
+        }
+    }
+
+    return invoke_id;
+}